/*******************************************************************************
    Author:  Gaurav Singh
    website: www.circuitvalley.com 
    Created on July 12, 2018
    
    This file is part of Circuitvalley TruePosition GPSDO Controller with OLED.
    Circuitvalley TruePosition GPSDO Controller with OLED is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    Circuitvalley TruePosition GPSDO Controller with OLED is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    You should have received a copy of the GNU General Public License
    along with Circuitvalley TruePosition GPSDO Controller with OLED.  If not, see <http://www.gnu.org/licenses/>.
*******************************************************************************/

#include "OLED_SH1107.h"


#include "HAL_OLED.h"
#include <stdint.h>
#include "graphics.h"


const uint8_t display_line[]={0, 15, 28, 43, 59, 75 }; // pixel at each line begin 

static void OLED_InitializeDisplayBuffer(void *pvDisplayData, uint16_t ucValue);



static void OLED_ClearAll_SH1107(uint8_t def)
{

    uint16_t xj;
    uint16_t xi;

    HAL_LCD_clearCS;
    HAL_OLED_setDATAorCMD(OLED_CMD);
    HAL_LCD_writeCommandOrData(0xB0);
    def = 0;
    for( xj=0; xj< 128; xj++)
    {
        HAL_OLED_setDATAorCMD(OLED_CMD);
        HAL_LCD_writeCommandOrData(0x0 | xj & 0xF);
        HAL_LCD_writeCommandOrData(0x10 | xj>>4);
        HAL_OLED_setDATAorCMD(OLED_DATA);

        for( xi=0; xi<(128>>3); xi++)
        {
            HAL_LCD_writeCommandOrData(def);
        }

    }
    HAL_LCD_setCS;
}


//*****************************************************************************
//
//! Initializes the display driver.
//!
//! This function initializes the OLED display controller preparing it to
//! display data.
//!
//! \return None.
//
//*****************************************************************************
void OLED_initDisplay(void)
{
        OLED_nRST_LAT = 1;

    HAL_LCD_clearCS;
    HAL_OLED_setDATAorCMD(OLED_CMD);


    HAL_LCD_writeCommandOrData(0xAE); //display off
    HAL_LCD_writeCommandOrData(0xdc); // Set Display Start Line
    HAL_LCD_writeCommandOrData(0x0);
    HAL_LCD_writeCommandOrData(0x81); // Set Contrast Control
    HAL_LCD_writeCommandOrData(0x5F);
    HAL_LCD_writeCommandOrData(0xA0); //segment remap
    HAL_LCD_writeCommandOrData(0x21);
    HAL_LCD_writeCommandOrData(0xc8); //0xc0,0xc8// Set Common scan direction
    HAL_LCD_writeCommandOrData(0x7F);   // Set Multiplex Ration
    HAL_LCD_writeCommandOrData(0x58);
    HAL_LCD_writeCommandOrData(0xd3); // Set Display Offset
    HAL_LCD_writeCommandOrData(0x6C);//0x60
    HAL_LCD_writeCommandOrData(0xD5); //Set Display Divide Ratio/Oscillator Frequency Mode Set
    HAL_LCD_writeCommandOrData(0x51);
    HAL_LCD_writeCommandOrData(0xd9); // Set Phase Leghth
    HAL_LCD_writeCommandOrData(0x22);
    HAL_LCD_writeCommandOrData(0xdb); // Set Vcomh voltage
    HAL_LCD_writeCommandOrData(0x35);
    HAL_LCD_writeCommandOrData(0xB0);
    HAL_LCD_writeCommandOrData(0xDA);   //set com pin
    HAL_LCD_writeCommandOrData(0x12);
    HAL_LCD_writeCommandOrData(0xa4); // Set Entire Display OFF/ON
    HAL_LCD_writeCommandOrData(0xa6); // Set Normal/Reverse Display
//    HAL_LCD_writeCommandOrData(0xad); // Set External VPP
//    HAL_LCD_writeCommandOrData(0x8a);

    __delay_ms(50);
    HAL_LCD_writeCommandOrData(0xaf); //Display ON
    OLED_ClearAll_SH1107(0x03);
    HAL_LCD_setCS;

}

void OLED_disable(void)
{
	HAL_LCD_disableDisplay;
}

void OLED_enable(void)
{
	HAL_LCD_enableDisplay;
}

static const unsigned char BitReverseTable256[] =
{
  0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0,
  0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8,
  0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4, 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4,
  0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, 0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC,
  0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2, 0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2,
  0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA, 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA,
  0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, 0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76, 0xF6,
  0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE, 0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE,
  0x01, 0x81, 0x41, 0xC1, 0x21, 0xA1, 0x61, 0xE1, 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1,
  0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, 0x19, 0x99, 0x59, 0xD9, 0x39, 0xB9, 0x79, 0xF9,
  0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5, 0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5,
  0x0D, 0x8D, 0x4D, 0xCD, 0x2D, 0xAD, 0x6D, 0xED, 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD,
  0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, 0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3,
  0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB, 0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB,
  0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7, 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7,
  0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF, 0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF
};


void OLED_Flush_linebuffer(uint8_t y)
{
	uint8_t *pucData = (uint8_t*) linebuffer;
	uint8_t xi =0;
	uint8_t yj = 0;
	HAL_LCD_clearCS;
    HAL_OLED_setDATAorCMD(OLED_CMD);
    HAL_LCD_writeCommandOrData(0xB0);

	for( yj=0; yj< LINE_BUFFER_VERTICAL; yj++)
	{
	    HAL_OLED_setDATAorCMD(OLED_CMD);
	    HAL_LCD_writeCommandOrData(0x00 | (y + yj) & 0xF);
	    HAL_LCD_writeCommandOrData(0x10 | (y + yj) >> 4);
	    HAL_OLED_setDATAorCMD(OLED_DATA);

	    for( xi=0; xi<(LCD_HORIZONTAL_MAX>>3); xi++)
	    {
	        HAL_LCD_writeCommandOrData(BitReverseTable256[*(pucData++)]);

	    }
	}
    HAL_LCD_setCS;
}


//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************

